Kind of Gun is this M4A1

the whole design of the M4 system was to make it extremely adaptable. the base of an M4A1 and a cylindrical grip, and a folding butt stock. but that's the beauty of it. you can put ANYTHING you want on it, picitinny rails lining the whole top of the weapon. and of course picitinny rails for the forward grip. and if by "the pointy aiming things" lol you mean the front sight. usually if the weapon is going to have optics mounted, EO-TECH or an ACOG (Sometimes used together for magnification) the front sight would get in the way. most models now adays have Fold down BUI's (back up iron sights). and there are many different models of stocks, different companies Develop new stocks to fit the user better such as cheek rests or elevation control.

This is the closest i could find to a Stock M4A1

But what your talking about seems like a pretty Customized weapon, Now this is a fully decked out M4A1 ( please ignore the fact that its airsoft , thats all thats on the internet nowadays...)

Notice the different pistol grip, the Different stock with a cheek rest. the fold down BUI's, the Foregrip/bipod, the different Barrel cover, the CQB muzzle break and the CCO sight.

AK74M's Won, Now What?

Though it remains as the standard rifle in Russian Army today, AK74M didn't improve much from the orignal AK74 in terms of accuracy. The NATO designs from the same period, such as AR15 family (M16), although have higher recoil and less durability, have already proven to be much more accurate and efficient for modern combat, to a degree that even rifles like AN-94 can't compete when it comes to general accuracy.

So the story hasn't ended. Russian military still needs a better rifle to balance out from those of the western designs such as FN SCAR, ACR.

This time, old competitors like AEK, AN, and other outclassed like AL-7, now AK-107, will all show up again. Also, new competitors like AK-12, the latest revision of AK74M, will be on the guest list too.

The AK74M, though with amazing short burst ability, would have a hard time to win, just like it did in Project Abakan. And its short burst ability isn't much needed in todays conflicts, as with the DMR's role becoming more and more important, assault rifles would have to depend more on long burst and full auto.